Endless belt for conveyor belts of agricultural machines

Abstract

A belt as an endless traction device for conveyor belts of agricultural machines, the belt being made of a polymer that is reinforced by fabric plies. Endless belt provides a conveyor belt of this type which has high static and dynamic strength at the connecting point, combined with great bending flexibility. This is achieved in that at least one fabric ply of each belt end, folded back on itself, wraps around a thickened area and extends between the thickened area and a stop, which forms an abutment with respect to the thickened area, in such a way that the fabric ply is jammed between the thickened area and the stop when tension acts on the belt in the reverse direction.

What is claimed is: 
     
         1 . An endless belt for conveyor belts of agricultural machines, wherein the belt is made of a polymer that is reinforced by fabric plies, and at least one fabric ply of each belt end, folded back on itself, wraps around a thickened area and extends between the thickened area and a stop, which forms an abutment with respect to the thickened area, in such a way that the fabric ply is jammed between the thickened area and the stop when tension acts on the belt in the reverse direction. 
     
     
         2 . The belt according to  claim 1 , wherein the thickened areas which are wrapped around by the at least one fabric ply are inserted into a cage which is formed in one piece by a first half shell and a second half shell, in the assembled state the first half shell being situated on the outer side of the belt and the second half shell being situated on the inner side of the belt, and both half shells are joined together in one piece at an end-face side of the cage, while the other end-face side of the cage is open, a gap being situated in both side walls of the cage which face in the longitudinal direction of the belt for the at least one fabric ply folded back on itself to pass through, and the side walls forming the stop for the respective adjoining thickened area with the at least one fabric ply situated in between. 
     
     
         3 . The belt according to  claim 1 , wherein the thickened areas which are wrapped around by the at least one fabric ply are inserted into a cage which is formed in two pieces by a first half shell and a second half shell, in the assembled state the first half shell being situated on the outer side of the belt and the second half shell being situated on the inner side of the belt, and both half shells are screwed together, a gap being situated in both side walls of the cage which face in the longitudinal direction of the belt for the at least one fabric ply folded back on itself to pass through, and the side walls forming the stop for the respective adjoining thickened area with the at least one fabric ply situated in between. 
     
     
         4 . The belt according to  claim 1 , wherein the fabric plies folded back on themselves, of which there is at least one, of the two belt ends lie one on top of the other in an overlapping manner, and are situated in the overlap area between a first clamping plate situated on the outer side of the belt and a second clamping plate situated on the inner side of the belt, which are screwed together, a side wall of the clamping plates which extends transversely with respect to the longitudinal direction of the belt forming the stop for the respective adjoining thickened area with the at least one fabric ply situated in between. 
     
     
         5 . The belt according to  claim 2 , wherein the second half shell situated on the inner side of the belt has the shape of a drive cam. 
     
     
         6 . The belt according to  claim 2 , wherein the first half shell situated on the outer side of the belt is formed by a flattened end of a transverse rod which connects two belts. 
     
     
         7 . The belt according to  claim 1 , wherein the thickened area is formed by a flexible body having dimensions such that even its compressed dimensions ensure jamming of the at least one fabric ply. 
     
     
         8 . The belt according to  claim 1 , wherein the thickened area is formed by a rigid rod. 
     
     
         9 . The belt according to  claim 8 , wherein the rod is inserted loosely into the fabric plies, and is only held in position by same. 
     
     
         10 . The belt according to  claim 8 , wherein the rod is vulcanized into the fabric ply.